DE602007010102D1 - HIGH-RESISTANCE SPRING STEEL WITH EXCELLENT RESISTANCE TO SPRAY FRACTURES AND MANUFACTURING METHOD THEREFOR - Google Patents

HIGH-RESISTANCE SPRING STEEL WITH EXCELLENT RESISTANCE TO SPRAY FRACTURES AND MANUFACTURING METHOD THEREFOR

Info

Publication number
DE602007010102D1
DE602007010102D1 DE602007010102T DE602007010102T DE602007010102D1 DE 602007010102 D1 DE602007010102 D1 DE 602007010102D1 DE 602007010102 T DE602007010102 T DE 602007010102T DE 602007010102 T DE602007010102 T DE 602007010102T DE 602007010102 D1 DE602007010102 D1 DE 602007010102D1
Authority
DE
Germany
Prior art keywords
less
spring steel
resistance
manufacturing
fractures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602007010102T
Other languages
German (de)
Inventor
Takuya Kochi
Hiroshi Yaguchi
Wataru Urushihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of DE602007010102D1 publication Critical patent/DE602007010102D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y10S148/908—Spring

Abstract

A spring steel having a high strength of 1900 MPa or more and superior in the brittle fracture resistance, as well as a method for manufacturing the same, are provided. The high strength spring steel comprises, as basic components in mass %, C: 0.4-0.6%, Si: 1.4-3.0%, Mn: 0.1-1.0%, Cr: 0.2-2.5%, P: 0.025% or less, S: 0.025% or less, N: 0.006% or less, Al: 0.1% or less, and O: 0.003% or less, the amount of solute C being 0.15% or less, the amount of Cr contained as a Cr-containing precipitate being 0.10% or less, and a TS value represented by the following equation being 24.8% or more, and in point of structure, the pre-austenite grain diameter being 10 µm or smaller, wherein TS = 28.5*[C]+4.9*[Si]+0.5*[Mn]+2.5*[Cr]+1.7*[V]+3.7*[Mo] where [X] stands for mass % of element X.
DE602007010102T 2006-01-23 2007-01-23 HIGH-RESISTANCE SPRING STEEL WITH EXCELLENT RESISTANCE TO SPRAY FRACTURES AND MANUFACTURING METHOD THEREFOR Active DE602007010102D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006013471A JP4027956B2 (en) 2006-01-23 2006-01-23 High strength spring steel having excellent brittle fracture resistance and method for producing the same
PCT/JP2007/050969 WO2007083808A1 (en) 2006-01-23 2007-01-23 High-strength spring steel excellent in brittle fracture resistance and method for producing same

Publications (1)

Publication Number Publication Date
DE602007010102D1 true DE602007010102D1 (en) 2010-12-09

Family

ID=38287750

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007010102T Active DE602007010102D1 (en) 2006-01-23 2007-01-23 HIGH-RESISTANCE SPRING STEEL WITH EXCELLENT RESISTANCE TO SPRAY FRACTURES AND MANUFACTURING METHOD THEREFOR

Country Status (11)

Country Link
US (1) US8038934B2 (en)
EP (1) EP1985721B1 (en)
JP (1) JP4027956B2 (en)
KR (1) KR101029431B1 (en)
CN (1) CN101365820B (en)
AT (1) ATE486147T1 (en)
BR (1) BRPI0706549B1 (en)
CA (1) CA2632407C (en)
DE (1) DE602007010102D1 (en)
ES (1) ES2352856T3 (en)
WO (1) WO2007083808A1 (en)

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RU2478134C1 (en) * 2011-12-14 2013-03-27 Юлия Алексеевна Щепочкина Steel
RU2477760C1 (en) * 2011-12-14 2013-03-20 Юлия Алексеевна Щепочкина Steel
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CN102676946B (en) * 2012-05-23 2014-04-09 攀枝花市白云铸造有限责任公司 Segmented hardness low-alloy steel hammer head and manufacturing method thereof
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CN102719759B (en) * 2012-07-12 2014-03-26 南车戚墅堰机车车辆工艺研究所有限公司 Elastic bar steel for high-speed rail fastener and smelting production method thereof
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JP6452454B2 (en) * 2014-02-28 2019-01-16 株式会社神戸製鋼所 Rolled material for high strength spring and wire for high strength spring
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CN104060175B (en) * 2014-05-27 2017-01-11 安徽红桥金属制造有限公司 Spring and production method thereof
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CN105483555B (en) * 2015-12-11 2017-12-05 贵州大学 Spring steel and preparation method thereof and heat treatment method
KR101745210B1 (en) * 2015-12-15 2017-06-09 현대자동차주식회사 High durability coil spring steel
CN105525208A (en) * 2016-01-13 2016-04-27 铜陵百荣新型材料铸件有限公司 Thermal treatment process of high-hardenability spring steel
CN105886930B (en) * 2016-04-26 2017-12-26 宝山钢铁股份有限公司 A kind of high-strength corrosion-resistant spring steel and its manufacture method
CN106191655A (en) * 2016-08-17 2016-12-07 安徽红桥金属制造有限公司 A kind of wear-resistant oxidation-resistant alloy spring steel and Technology for Heating Processing thereof
JP6356309B1 (en) * 2016-10-19 2018-07-11 三菱製鋼株式会社 High-strength spring, method for manufacturing the same, steel for high-strength spring, and method for manufacturing the same
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CN110760748B (en) * 2018-07-27 2021-05-14 宝山钢铁股份有限公司 Spring steel with excellent fatigue life and manufacturing method thereof
CN109881100A (en) * 2019-03-19 2019-06-14 马鞍山钢铁股份有限公司 A kind of anti-corrosion spring steel and its production method of tensile strength >=2000MPa
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Also Published As

Publication number Publication date
CN101365820B (en) 2013-03-27
KR20080080210A (en) 2008-09-02
EP1985721B1 (en) 2010-10-27
EP1985721A4 (en) 2010-03-24
JP4027956B2 (en) 2007-12-26
US20100224287A1 (en) 2010-09-09
BRPI0706549A2 (en) 2011-03-29
ES2352856T3 (en) 2011-02-23
CA2632407A1 (en) 2007-07-26
ATE486147T1 (en) 2010-11-15
BRPI0706549B1 (en) 2015-09-08
CN101365820A (en) 2009-02-11
WO2007083808A1 (en) 2007-07-26
EP1985721A1 (en) 2008-10-29
CA2632407C (en) 2012-04-03
JP2007191776A (en) 2007-08-02
US8038934B2 (en) 2011-10-18
KR101029431B1 (en) 2011-04-14

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